Demounting and mounting tool used for fixed type inner magnetic steel of corrugated spring

Abstract

The invention discloses a demounting and mounting tool used for fixed type inner magnetic steel of a corrugated spring. The demounting and mounting tool comprises a sleeve, a locking sleeve, ring sleeves and a fixing ring. The sleeve is a hollow cylinder body, one end of the sleeve is provided with an outer thread, and the other end of the sleeve is provided with a protruding step. The locking sleeve is a ring with an L-shaped cross section, and the locking sleeve is provided with an inner thread. The outer thread of the end portion of the sleeve is matched with the inner thread of the lockingsleeve, and the locking sleeve is screwed to the end portion of the sleeve through the threads. The ring sleeves are two semicircular rings provided with grooves, and the shape of the grooves is matched with the protruding step on the sleeve. The grooves of the two ring sleeves are clamped to the step of the sleeve to form a complete ring. The fixing ring is a ring with an L-shaped cross sectionand is arranged on the sleeve in a sleeving manner, the diameter of an inner hole of the end face of the fixing ring is matched with the outer diameter of the sleeve, the inner diameter of the ring ismatched with the outer diameter of the ring sleeves, and the ring sleeves are fixed. By means of the demounting and mounting tool used for the fixed type inner magnetic steel of the corrugated spring, the corrugated spring is pressed by rotating the locking sleeve, and the problem that demounting and mounting cannot be conducted by labor is solved.

Description

technical field [0001] The invention belongs to the technical field of petroleum instrument tooling. Background technique [0002] In oil drilling instruments, internal magnetic steel is a commonly used precision component. In the instrument, the inner magnetic steel needs to be used in conjunction with the outer magnetic steel, and the inner magnetic strip is relatively brittle, and the installation space is small, so it needs to be fixed firmly and have a certain buffering and shock-absorbing ability. Fixed in a circle. [0003] When installing the inner magnetic steel in this fixing method, the corrugated spring needs to be flattened first, and then released after the steel wire retaining ring is installed. The spring preload is about 1KN, and the corrugated spring cannot be flattened by hand for installation, so it is necessary to design a disassembly tool for the corrugated spring fixed inner magnetic steel. Contents of the invention [0004] In order to solve the ...

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Problems solved by technology

[0004] In order to solve the problem of difficult assembly and disassembly of the corrugated spring fixed inner magnetic steel, the present invention proposes a disassembly and assembly tool for the corrugated spring fixed inner magnetic steel

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